| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than two weeks | 156 |
15.5%
|
| 2 | About one month | 268 |
26.6%
|
| 3 | About two months | 181 |
18%
|
| 4 | More than two months | 345 |
34.2%
|
| 5 | Don't know | 57 |
5.7%
|
| 6 | Refused | 1 |
0.1%
|